SimpleHelp CVE-2026-48558 RMM Bypass Exploited

SimpleHelp CVE-2026-48558

A critical SimpleHelp CVE-2026-48558 authentication bypass is letting attackers forge a login token and seize a fully authenticated technician session in the remote monitoring and management (RMM) software thousands of managed service providers use to run client networks. CISA added the flaw to its Known Exploited Vulnerabilities catalog on June 29, and researchers have already…

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